1/4 c. red wine vinegar
2 tbsp. vegetable oil
2 tbsp. soy sauce
2 tbsp. catsup
1/4 tsp. onion salt
Garlic powder, to taste
Black pepper, to taste

Combine ingredients and use with beef, pork or chicken. Begin by marinating for 3-4 hours, turning several times. Increase marinating time for more flavor. Marinate in refrigerator unless recipe indicates otherwise. When broiling or grilling use remaining marinade for basting.